C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
7. Remove the Positive Crankcase Ventilation (PCV) hose with valve.
8. Remove the MAP sensor (1) from the intake manifold.
9. Remove the Evaporative Emission (EVAP) purge solenoid vent tube by performing the following:
9.1.
Remove the EVAP tube end from the solenoid (1).
9.2.
Remove the EVAP tube end from the vapor pipe (2).